I was looking at the peds of all my cats and Wrinkles and Polar have some of the same cats on the dams side even though they have different moms. The same cats are in the 4th Gen of Wrinkles and the 5th Gen of Polar. I am not sure what that makes them. Cleo is Polars half sister on the sires side.

Am I wrong about this or aren't all sphynx related unless you're comparing a Don to a Peterbald to a Canadian? I mean, each of the three varieties all go back to the same foundation stock within their variety, don't they? So aren't all Canadians ultimately related to each other, and the same for the Dons and Petes?